Silo liner



April 1929- c. w. STITT ET AL 7 1, 11,184

SILO LINER File d Feb. 11, 1928,

/ ATTORNEY.

Patented Apr. 30, 1929.

; 1,711,184 PATENT OFFICE. v

CARROLL W. 'STITT AND JAMES I. JENSEN, HURON, SOUTH DAKOTA.

SILO LINER.

1 Application filed February 11, 1928. Serial No. 253,769.

This invention relates to silos, and particularly to a liner for silos. I

The general ob ect of the invention is to provide a liner of paper or likematerial which will make the silo air-proof and also act to prevent the ensilage. from freezing to the inner face of the silowall or walls or adhering thereto. -The invention is illustrated in the accompanying drawing, wherein Figure 1 is a cross sectional view of a conventional silo showing our lining applied thereto; v

Figure 2 is a perspective View of one of the joints between the wax paper sections;

Figure 3 is a perspective view showing the joint used at the doorway of the silo.

Referring to this drawing, it will be seen that we have illustrated an ordinary silo made up of staves 10 having a door opening 11 closed by ordinary silo doors 12, the staves of the silo being held in place by the usual hoops 13. This is purely illustrative, as the silo might be made of any suitable material and constructed in any manner, our invention not lying in the silo but in the liner therefor.-

Disposed within the silo and fitting tight ly against the inner face of the wall thereof is the liner 1 1 which is composed of sections and consists of a base material, such as paper, which is air-proofed by being impregnated with and having a covering of wax. This liner is made in longitudinal extending sections adapted to be disposed from top to bottom of the silo so that it is possible to apply this liner to any silo. These sect-ions, except the section which covers or extends across the door opening of the silo, have their margins folded down upon the body of the section, as at 15, and the refolded margins of the sections are engaged with each other, as shown in Figure 2, so as to form an air-tight joint between the sections. These joints preferably extend from top to bottom of the silo, but we do not wish to be limited to this, and if the silo should be made of such length that the sections could not extend from top to bot tom thereof, a like joint may be used between the ends of the vertically extending sections.

The section 14E which extends over the door opening and across the inner face of the'door is precisely the same as the other sections, except that it is formed with a double fold,

the material being folded over at the margin upon the body of the section, as at 15, and then refolded, as at 15?. The next adjacent section1-1 has its fold 15 disposed within the fold 1.5 of thesection 1 1 in the manner shown in Fi ure 8, so as to form a double fold joint for this door section 14 which will prevent all possible chance of the entrance of air around the door.

lVhile we do not wish to be limitedto any particular material for this purpose, we prefcrably use a relatively heavy grade of paper which is I heavily impregnated with wax. This paper may be of one thickness oraplurality of thicknesses, as may be found most expedient. The paper is held in place by means of a plurality of interior hoops 16, these hoops being preferably flat and having turnbuckles 17 engaging the ends of each hoop and acting to expand the hoops against the interior face of the paper lining. Preferably a padded base 18 is provided, against whicheach hoop bears so as to prevent the hoops from cutting into the paper or injuring it in any way.

While we have referred to a padded base, it will be understood that a base of any suitable material may be used which will act to prevent the hoop from injuring the liner.

We do not wish to be limited to the material of the lining, to the size or form of the.

sections, to the particular folds forming the joints between the sections, nor to the use of a wax-impregnated or coated material excep't as defined in the appended claims. It will be understood that Figure 1 is somewhat diagrammatic in character and'that the folds in the paper sections are exaggerated in proportion to the silo so as to show the manner in which the folds are made and that in actual practice these folds will be flattened down tightly against the inner face'of the silo wall and that the padded base 18 will bear flat against the paper and the interior hoops will bear fiat against the base substantially continuously entirely around the silo.

It willbe understood that the liner may be impregnated with any suitable material which will render it leak-proof and that any base material may be used as, for example, wire screening, burlap, etc. The padded base 18 of the hoop can be formed of any material suited for that purpose and should be fastened to the hoop for removal therewith.

We claim i 1. As an article of manufacture, a lining lllU for silos consisting of elongated sections of a base material impregnated with a material making the sections water-proof and airproof, the lateral margins of the lining sections being folded over, these folds being adapted to be engaged with the folds of adj acent sheets to form a joint and prevent the sheets from shifting with relation to each other when in place.

2. In a silo, a lining consisting of sections of thin, water-prooted material extending from top to bottom of the silo, the margins of the sections being interfclded so as to form water-proof joints between the sections, and

' means on the interior of the silo for holding the sections in place against the wall thereof.

3. In a silo, a lining consisting of sections of thin, water-proo'fed material extending from top to bottom of the silo, the margins oi the sections being interi olded so as to form water-proof joints between the sections, means on the interior of the silo for holding the sections in place against the Wall thereof, and expansible hoops disposed within the silo and expanded against the lining to hold the latter in place.

4. In a silo, a silo lining consisting of widths of Wax-coated material, the sections extending from top to bottom of the silo and being inter-folded at their margins to provide leak-proof joints, and expansible means engaging the interior of the lining and holding it in place against the wall of the silo.

5. In a silo, a lining consisting of widths of wax-coated material, the sections extending from top to bottom of the silo and being interfolded at their margins to provide leak-proof joints, expansible means engaging the interior of the lining and holding it in place against the wall of the silo including transversely flat hoops, turnbuckles whereby the hoops may be expanded, and a base bearing immediately against the lining and against which the hoops bear.

In testimony whereof we hereunto affix our signatures.

CARROLL W. STITT. JAMES I. JENSEN. 

